National Holidays in Iran
There are generally two kinds of holidays (or free days) in Iran; religious and non-religious. The former is based on the lunar calendar and the latter on the solar calender (official calender of Iran). As a result, the holidays can rotate in the Gregorian calendar.
Below you will find a list of national holidays in 2015 (cited from timeanddate.com)
| Date | Weekday | Holiday name | Holiday type | |
| Jan 9 | Friday | Birthday of Muhammad and Imam Sadeq | National holiday | |
| Feb 11 | Wednesday | Revolution Day | National holiday | |
| Mar 20 | Friday | March equinox | Season | |
| Mar 20 | Friday | Oil Nationalization Day | National holiday | |
| Mar 21 | Saturday | Norooz (Persian New Year) | National holiday | |
| Mar 22 | Sunday | Norooz Holiday | National holiday | |
| Mar 23 | Monday | Norooz Holiday | National holiday | |
| Mar 24 | Tuesday | Norooz Holiday | National holiday | |
| Mar 24 | Tuesday | Martyrdom of Fatima | National holiday | |
| Apr 1 | Wednesday | Islamic Republic Day | National holiday | |
| Apr 2 | Thursday | Nature Day | National holiday | |
| May 2 | Saturday | Birthday of Imam Ali | National holiday | |
| May 16 | Saturday | Prophet’s Ascension | National holiday | |
| Jun 3 | Wednesday | Imam Mahdi’s birthday | National holiday | |
| Jun 4 | Thursday | Anniversary of Khomeini’s Death | National holiday | |
| Jun 5 | Friday | Revolt of Khordad 15 | National holiday | |
| Jun 21 | Sunday | June Solstice | Season | |
| Jul 8 | Wednesday | Martyrdom of Imam Ali | National holiday | |
| Jul 18 | Saturday | Eid-e-Fetr (End of Ramadan) | National holiday | |
| Aug 11 | Tuesday | Martyrdom of Imam Sadeq | National holiday | |
| Sep 23 | Wednesday | September equinox | Season | |
| Sep 24 | Thursday | Eid-e-Ghorban (Feast of Sacrifice) | National holiday | |
| Oct 2 | Friday | Eid-al-Ghadir | National holiday | |
| Oct 23 | Friday | Tassoua | National holiday | |
| Oct 24 | Saturday | Ashura | National holiday | |
| Dec 2 | Wednesday | Arbaeen | National holiday | |
| Dec 10 | Thursday | Demise of Prophet Muhammad and Martyrdom of Imam Hassan | National holiday | |
| Dec 12 | Saturday | Martyrdom of Imam Reza | National holiday | |
| Dec 22 | Tuesday | December Solstice | Season | |
| Dec 29 | Tuesday | Birthday of Muhammad and Imam Sadeq | National holiday |
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